EP0759866B1 - Improved safety master cylinder - Google Patents

Improved safety master cylinder Download PDF

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Publication number
EP0759866B1
EP0759866B1 EP95916742A EP95916742A EP0759866B1 EP 0759866 B1 EP0759866 B1 EP 0759866B1 EP 95916742 A EP95916742 A EP 95916742A EP 95916742 A EP95916742 A EP 95916742A EP 0759866 B1 EP0759866 B1 EP 0759866B1
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EP
European Patent Office
Prior art keywords
master cylinder
valve
working volume
closure piece
leak
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP95916742A
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German (de)
French (fr)
Other versions
EP0759866A1 (en
Inventor
Jean Pierre Gautier
Ulysse Verbo
Revilla Miguel Perez
Flavio Cobianchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bosch Systemes de Freinage SAS
Original Assignee
Bosch Systemes de Freinage SAS
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Publication date
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Application filed by Bosch Systemes de Freinage SAS filed Critical Bosch Systemes de Freinage SAS
Publication of EP0759866A1 publication Critical patent/EP0759866A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/18—Safety devices; Monitoring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T7/00—Brake-action initiating means
    • B60T7/02—Brake-action initiating means for personal initiation
    • B60T7/04—Brake-action initiating means for personal initiation foot actuated

Definitions

  • the present invention relates to a braking device comprising a master cylinder and a pipe, the master cylinder comprising a body pierced with a bore closed on one side by a bottom and on the other by a piston which slides in this bore in delimiting therein a pressure chamber which is connected to at least one brake motor through a exit from this chamber and through the said pressure line, the chamber and the line pressure together defining a working volume filled with a hydraulic fluid.
  • the present invention is situated in this context, and aims to propose a device brakes meeting this requirement.
  • the braking device of the present invention is essentially characterized by that the work volume is partially delimited by a leakage device allowing selectively, in response to a shock applied thereto, a leak of hydraulic fluid to outside of this volume of work.
  • the leakage device comprises essentially a valve comprising a closure piece controlled by a pusher projecting outside the working volume, this valve being suitable for opening the volume of working outwards in response to a translation carried out by the pusher under the effect of a shock.
  • the valve has for example a wall pierced with an orifice which reduces it to an annular surface surrounding this orifice, and the closure part has a shoulder which cooperates with this annular surface, along a closed curve surrounding the orifice and by through an annular seal, to seal the wall tightly when this part shutter is in a rest position.
  • the valve may include a cylindrical body external to the master cylinder, closed by the obturation piece, and in which the latter is mounted in translation, or the wall of the valve can be formed by the bottom of the master cylinder, this valve then being housed in the master cylinder and being an integral part of it.
  • the closure piece is biased by a spring in a rest position.
  • the leakage device comprises a body fragile hollow, external to the master cylinder, and capable of breaking under the effect of a shock.
  • a hydraulic braking system includes traditionally a master cylinder 1 actuated by a pedal 2, most often through a assistance booster 3 which amplifies the force exerted on the pedal 2.
  • the master cylinder 1 itself comprises (FIG. 2) a body 4 pierced with a closed bore 5 on one side by a bottom 6 and on the other by a piston 7 which slides in this bore therein delimiting a pressure chamber 8 which is connected to at least one brake motor 9, 10 to through an outlet 11 from this chamber and through a pressure line 12.
  • the working volume 8, 12 is partially delimited by a device for leak selectively authorizing, in response to a shock applied thereto, leakage of the fluid hydraulic to the outside of this working volume.
  • this leakage device comprises essentially a valve comprising a closure piece 13 controlled by a pusher 14 protruding outside the working volume, this valve being suitable for opening the volume working outwards in response to a translation effected by the pusher 14 under the effect of a shock.
  • the valve has a wall 15 pierced with a orifice 16 which reduces it to an annular surface surrounding this orifice, and the closure part 13 has a shoulder 17 which cooperates with this annular surface, along a curve closed area S1 surrounding the orifice and by means of an annular seal 18, to close the wall 15 sealingly when this closure piece 13 is in a position of rest, as illustrated in the figures.
  • the wall 15 of the valve can be formed by the bottom of the master cylinder itself, this valve thus being housed in the master cylinder and forming an integral part of the latter, as shown in the embodiment of Figures 1 and 2.
  • valve may also include a cylindrical body 19 external to the master cylinder, closed by the closure piece, and in which the latter is mounted in translation, as shown in Figures 3 and 4.
  • the closure piece in all cases, it is advantageous for the closure piece to be biased by a spring. 20 in a rest position, in which it performs its sealing function.
  • closure piece 13 can be designed to seal the two faces of the cylindrical body 19.
  • this the latter comprises a fragile hollow body 21, external to the master cylinder 1, and suitable for break under the effect of a shock.
  • the hollow body 21 can be made of light alloy, and have zones of lower resistance, such as 21a, on which knives 22 acting on the hollow body 21 a shearing force in the event of impact.
  • closure piece 13 in the case of Figures 3 and 4, or the knives 22 in the case of Figures 5 and 6 are controlled in position by large surface thrust members, such as 23, mounted at the front of the master cylinder in the direction of travel of the vehicle equipped with the invention.
  • a frontal impact from the vehicle has the effect of driving the part shutter 13 or cause rupture of the hollow body 21, which results in the liquid braking present in the working volume 8, 12 escapes to the outside.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)
  • Braking Arrangements (AREA)
  • Actuator (AREA)

Description

La présente invention concerne un dispositif de freinage comprenant un maítre-cylindre et une canalisation, le maítre-cylindre comprenant un corps percé d'un alésage fermé d'un côté par un fond et de l'autre par un piston qui coulisse dans cet alésage en y délimitant une chambre de pression qui est reliée à au moins un moteur de frein à travers une sortie de cette chambre et à travers la dite canalisation de pression, la chambre et la canalisation de pression délimitant ensemble un volume de travail rempli d'un fluide hydraulique.The present invention relates to a braking device comprising a master cylinder and a pipe, the master cylinder comprising a body pierced with a bore closed on one side by a bottom and on the other by a piston which slides in this bore in delimiting therein a pressure chamber which is connected to at least one brake motor through a exit from this chamber and through the said pressure line, the chamber and the line pressure together defining a working volume filled with a hydraulic fluid.

En pratique, tous les dispositifs de freinage utilisés dans les systèmes de freinage hydrauliques des véhicules à moteur depuis l'invention de ces derniers répondent à cette définition.In practice, all braking devices used in hydraulic braking systems motor vehicles since the invention of the latter meet this definition.

L'accroissement des normes de sécurité a révélé l'utilité de faire évoluer les maítres-cylindres d'une façon telle qu'un choc frontal appliqué au véhicule ne puisse être facilement transmis à la jambe du conducteur par le maítre-cylindre, même lorsque le choc intervient alors que le conducteur appuie de tout son poids sur la pédale de frein.Increased safety standards have revealed the usefulness of upgrading master cylinders in such a way that a frontal impact applied to the vehicle cannot be easily transmitted to the driver's leg by the master cylinder, even when the shock then occurs the driver presses the brake pedal with all their weight.

Les recherches dans ce domaine sont par exemple attestées par le document GB-A-2 230 493.Research in this area is for example attested by document GB-A-2 230 493.

La présente invention se situe dans ce contexte, et a pour but de proposer un dispositif de freinage répondant à cette exigence.The present invention is situated in this context, and aims to propose a device brakes meeting this requirement.

A cette fin, le dispositif de freinage de la présente invention est essentiellement caractérisé en ce que le volume de travail est partiellement délimité par un dispositif de fuite autorisant sélectivement, en réponse à un choc qui lui est appliqué, une fuite du fluide hydraulique vers l'extérieur de ce volume de travail.To this end, the braking device of the present invention is essentially characterized by that the work volume is partially delimited by a leakage device allowing selectively, in response to a shock applied thereto, a leak of hydraulic fluid to outside of this volume of work.

Selon un premier mode de réalisation possible, le dispositif de fuite comprend essentiellement une valve comportant une pièce d'obturation commandée par un poussoir faisant saillie à l'extérieur du volume de travail, cette valve étant propre à ouvrir le volume de travail vers l'extérieur en réponse à une translation effectuée par le poussoir sous l'effet d'un choc.According to a first possible embodiment, the leakage device comprises essentially a valve comprising a closure piece controlled by a pusher projecting outside the working volume, this valve being suitable for opening the volume of working outwards in response to a translation carried out by the pusher under the effect of a shock.

Dans ce cas, la valve présente par exemple une paroi percée d'un orifice qui la réduit à une surface annulaire entourant cet orifice, et la pièce d'obturation présente un épaulement qui coopère avec cette surface annulaire, le long d'une courbe fermée entourant l'orifice et par l'intermédiaire d'un joint annulaire, pour obturer la paroi de façon étanche lorsque cette pièce d'obturation se trouve dans une position de repos.In this case, the valve has for example a wall pierced with an orifice which reduces it to an annular surface surrounding this orifice, and the closure part has a shoulder which cooperates with this annular surface, along a closed curve surrounding the orifice and by through an annular seal, to seal the wall tightly when this part shutter is in a rest position.

La valve peut comprendre un corps cylindrique externe au maítre-cylindre, obturé par la pièce d'obturation, et dans lequel celle-ci est montée à translation, ou la paroi de la valve peut être constituée par le fond du maítre-cylindre, cette valve étant alors logée dans le maítre-cylindre et faisant partie intégrante de ce dernier.The valve may include a cylindrical body external to the master cylinder, closed by the obturation piece, and in which the latter is mounted in translation, or the wall of the valve can be formed by the bottom of the master cylinder, this valve then being housed in the master cylinder and being an integral part of it.

Dans tous les cas, il est préférable que la pièce d'obturation soit sollicitée par un ressort dans une position de repos.In all cases, it is preferable that the closure piece is biased by a spring in a rest position.

Dans un autre mode de réalisation possible, le dispositif de fuite comprend un corps creux fragile, externe au maítre-cylindre, et propre à se rompre sous l'effet d'un choc.In another possible embodiment, the leakage device comprises a body fragile hollow, external to the master cylinder, and capable of breaking under the effect of a shock.

D'autres caractéristiques et avantages de l'invention ressortiront clairement de la description qui en est faite ci-après, à titre indicatif et nullement limitatif, en référence aux figures annexées, parmi lesquelles :

  • la Figure 1 est une vue en coupe partielle d'un système de freinage incorporant un maítre-cylindre conforme à un premier mode de réalisation de l'invention;
  • la Figure 2 est une vue en coupe partielle d'un tel maítre-cylindre.
  • la Figure 3 est une vue en coupe partielle d'un maítre-cylindre conforme à une variante du premier mode de réalisation de l'invention;
  • la Figure 4 est une vue en coupe partielle d'un maítre-cylindre conforme à une seconde variante du premier mode de réalisation de l'invention;
  • la Figure 5 est une vue en coupe partielle d'un maítre-cylindre conforme à un second mode de réalisation de l'invention; et
  • la Figure 6 est une vue en coupe partielle d'un maítre-cylindre conforme à une variante du second mode de réalisation de l'invention.
Other characteristics and advantages of the invention will emerge clearly from the description which is given below, for information and in no way limitative, with reference to the appended figures, among which:
  • Figure 1 is a partial sectional view of a braking system incorporating a master cylinder according to a first embodiment of the invention;
  • Figure 2 is a partial sectional view of such a master cylinder.
  • Figure 3 is a partial sectional view of a master cylinder according to a variant of the first embodiment of the invention;
  • Figure 4 is a partial sectional view of a master cylinder according to a second variant of the first embodiment of the invention;
  • Figure 5 is a partial sectional view of a master cylinder according to a second embodiment of the invention; and
  • Figure 6 is a partial sectional view of a master cylinder according to a variant of the second embodiment of the invention.

Comme le montre la figure 1, un système hydraulique de freinage comprend traditionnellement un maítre-cylindre 1 actionné par une pédale 2, le plus souvent à travers un servomoteur d'assistance 3 qui amplifie la force exercée sur la pédale 2.As shown in Figure 1, a hydraulic braking system includes traditionally a master cylinder 1 actuated by a pedal 2, most often through a assistance booster 3 which amplifies the force exerted on the pedal 2.

Le maítre-cylindre 1 comprend lui-même (figure 2) un corps 4 percé d'un alésage 5 fermé d'un côté par un fond 6 et de l'autre par un piston 7 qui coulisse dans cet alésage en y délimitant une chambre de pression 8 qui est reliée à au moins un moteur de frein 9, 10 à travers une sortie 11 de cette chambre et à travers une canalisation 12 de pression.The master cylinder 1 itself comprises (FIG. 2) a body 4 pierced with a closed bore 5 on one side by a bottom 6 and on the other by a piston 7 which slides in this bore therein delimiting a pressure chamber 8 which is connected to at least one brake motor 9, 10 to through an outlet 11 from this chamber and through a pressure line 12.

La chambre 8 et la canalisation de pression 12 délimitent ensemble un volume de travail rempli d'un fluide hydraulique qui permet d'actionner chaque moteur de frein 9, 10 relié au maítre-cylindre.Chamber 8 and pressure line 12 together define a working volume filled with a hydraulic fluid which makes it possible to actuate each brake motor 9, 10 connected to the master cylinder.

Selon l'invention, le volume de travail 8, 12 est partiellement délimité par un dispositif de fuite autorisant sélectivement, en réponse à un choc qui lui est appliqué, une fuite du fluide hydraulique vers l'extérieur de ce volume de travail.According to the invention, the working volume 8, 12 is partially delimited by a device for leak selectively authorizing, in response to a shock applied thereto, leakage of the fluid hydraulic to the outside of this working volume.

Dans le mode de réalisation des figures 1à 4, ce dispositif de fuite comprend essentiellement une valve comportant une pièce d'obturation13 commandée par un poussoir 14 faisant saillie à l'extérieur du volume de travail, cette valve étant propre à ouvrir le volume de travail vers l'extérieur en réponse à une translation effectuée par le poussoir 14 sous l'effet d'un choc.In the embodiment of Figures 1 to 4, this leakage device comprises essentially a valve comprising a closure piece 13 controlled by a pusher 14 protruding outside the working volume, this valve being suitable for opening the volume working outwards in response to a translation effected by the pusher 14 under the effect of a shock.

Dans le mode de réalisation des figures 1à 3, la valve présente une paroi 15 percée d'un orifice 16 qui la réduit à une surface annulaire entourant cet orifice, et la pièce d'obturation 13 présente un épaulement 17 qui coopère avec cette surface annulaire, le long d'une courbe fermée d'aire S1 entourant l'orifice et par l'intermédiaire d'un joint annulaire 18, pour obturer la paroi 15 de façon étanche lorsque cette pièce d'obturation 13 se trouve dans une position de repos, telle qu'illustrée sur les figures.In the embodiment of FIGS. 1 to 3, the valve has a wall 15 pierced with a orifice 16 which reduces it to an annular surface surrounding this orifice, and the closure part 13 has a shoulder 17 which cooperates with this annular surface, along a curve closed area S1 surrounding the orifice and by means of an annular seal 18, to close the wall 15 sealingly when this closure piece 13 is in a position of rest, as illustrated in the figures.

La paroi 15 de la valve peut être constituée par le fond du maítre-cylindre lui-même, cette valve étant ainsi logée dans le maítre-cylindre et faisant partie intégrante de ce dernier, comme le montre le mode de réalisation des figures 1 et 2.The wall 15 of the valve can be formed by the bottom of the master cylinder itself, this valve thus being housed in the master cylinder and forming an integral part of the latter, as shown in the embodiment of Figures 1 and 2.

Cependant, la valve peut aussi comprendre un corps cylindrique 19 externe au maítre-cylindre, obturé par la pièce d'obturation, et dans lequel celle-ci est montée à translation, comme le montrent les figures 3 et 4.However, the valve may also include a cylindrical body 19 external to the master cylinder, closed by the closure piece, and in which the latter is mounted in translation, as shown in Figures 3 and 4.

Dans tous les cas, il est avantageux que la pièce d'obturation soit sollicitée par un ressort 20 dans une position de repos, dans laquelle elle assure sa fonction d'obturation.In all cases, it is advantageous for the closure piece to be biased by a spring. 20 in a rest position, in which it performs its sealing function.

Comme le montre la figure 4, la pièce d'obturation 13 peut être conçue pour obturer les deux faces du corps cylindrique 19.As shown in Figure 4, the closure piece 13 can be designed to seal the two faces of the cylindrical body 19.

Selon un autre mode de réalisation du dispositif de fuite, représenté aux figures 5 et 6, ce dernier comprend un corps creux fragile 21, externe au maítre-cylindre 1, et propre à se rompre sous l'effet d'un choc.According to another embodiment of the leakage device, shown in Figures 5 and 6, this the latter comprises a fragile hollow body 21, external to the master cylinder 1, and suitable for break under the effect of a shock.

Par exemple, le corps creux 21 peut être réalisé en alliage léger, et présenter des zones de plus faible résistance, telles que 21a, sur lesquelles s'appuient des couteaux 22 exerçant sur le corps creux 21 un effort de cisaillement en cas de choc.For example, the hollow body 21 can be made of light alloy, and have zones of lower resistance, such as 21a, on which knives 22 acting on the hollow body 21 a shearing force in the event of impact.

Dans tous les modes de réalisation, il est préférable que la pièce d'obturation 13 dans le cas des figures 3 et 4, ou les couteaux 22 dans le cas des figures 5 et 6 se trouvent commandées en position par des organes de poussée de grande surface, tels que 23, montés à l'avant du maítre-cylindre dans le sens de marche du véhicule équipé de l'invention.In all embodiments, it is preferable that the closure piece 13 in the case of Figures 3 and 4, or the knives 22 in the case of Figures 5 and 6 are controlled in position by large surface thrust members, such as 23, mounted at the front of the master cylinder in the direction of travel of the vehicle equipped with the invention.

Grâce à ces caractéristiques, un choc frontal du véhicule a pour effet d'enfoncer la pièce d'obturation 13 ou de provoquer la rupture du corps creux 21, ce dont il résulte que le liquide de freinage présent dans le volume de travail 8, 12 s'échappe vers l'extérieur.Thanks to these characteristics, a frontal impact from the vehicle has the effect of driving the part shutter 13 or cause rupture of the hollow body 21, which results in the liquid braking present in the working volume 8, 12 escapes to the outside.

Dans ces conditions, la pression dans la chambre 8 s'écroule instantanément, de sorte que même si le corps du maítre-cylindre se trouve repoussé en direction de la pédale, celle-ci ne renvoie vers le conducteur qu'une force relativement faible dans la mesure où le piston 7 peut librement coulisser dans l'alésage 5.Under these conditions, the pressure in chamber 8 instantly collapses, so that even if the body of the master cylinder is pushed back in the direction of the pedal, it does not returns to the conductor only a relatively weak force insofar as the piston 7 can freely slide in the bore 5.

Claims (7)

  1. Braking device comprising a master cylinder and a pressure pipe, the master cylinder comprising a body (4) pierced with a bore (5) closed on one side by an end (6) and on the other by a piston (7) which slides in this bore therein delimiting a pressure chamber (8) which is connected through at least one brake motor through an outlet (11) of this chamber and through said pressure pipe (12), the chamber and the pressure pipe together delimiting a working volume filled with a hydraulic fluid, characterized in that this working volume (8, 12) is furthermore partially delimited by a leak-off device which, in response to an impact which is applied to it, selectively allows hydraulic fluid to leak off towards the outside of this working volume.
  2. Device according to Claim 1, characterized in that the leak-off device essentially comprises a valve including a closure piece (13) controlled by a push rod (14) projecting out of the working volume, this valve being capable of opening the working volume to the outside in response to a translational movement carried out by the push rod under the effect of an impact.
  3. Device according to Claim 2, characterized in that the valve exhibits a wall (15) pierced with an orifice (16) which reduces it to an annular surface (15a) surrounding this orifice, and in that the closure piece (13) exhibits a shoulder (17) which interacts with this annular surface (15a) along a closed curve surrounding the orifice and by means of an annular seal (18) in order to close off the wall in a sealed fashion when this closure piece is in a position of rest.
  4. Device according to either one of Claims 2 and 3, characterized in that the valve comprises a cylindrical body (21) outside the master cylinder, closed off by the closure piece (13), and in which the latter is translationally mounted.
  5. Device according to Claim 3, characterized in that the wall (15) of the valve is made up of the end of the master cylinder, this valve thus being housed in the master cylinder and forming an integral part of the latter.
  6. Device according to any one of Claims 2 to 5, characterized in that the closure piece is urged into a position of rest by a spring (20).
  7. Device according to Claim 1, characterized in that the leak-off device comprises a fragile hollow body (19) outside the master cylinder and capable of breaking under the effect of an impact.
EP95916742A 1994-05-20 1995-04-12 Improved safety master cylinder Expired - Lifetime EP0759866B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9406142 1994-05-20
FR9406142A FR2720046B1 (en) 1994-05-20 1994-05-20 ENHANCED SAFETY MASTER CYLINDER
PCT/FR1995/000467 WO1995032115A1 (en) 1994-05-20 1995-04-12 Improved safety master cylinder

Publications (2)

Publication Number Publication Date
EP0759866A1 EP0759866A1 (en) 1997-03-05
EP0759866B1 true EP0759866B1 (en) 1998-01-07

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ID=9463363

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Application Number Title Priority Date Filing Date
EP95916742A Expired - Lifetime EP0759866B1 (en) 1994-05-20 1995-04-12 Improved safety master cylinder

Country Status (9)

Country Link
US (1) US5737919A (en)
EP (1) EP0759866B1 (en)
JP (1) JPH10500375A (en)
BR (1) BR9506494A (en)
DE (1) DE69501402T2 (en)
ES (1) ES2113196T3 (en)
FR (1) FR2720046B1 (en)
TR (1) TR28525A (en)
WO (1) WO1995032115A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4304565A1 (en) * 1993-02-16 1994-08-18 Teves Gmbh Alfred Motor vehicle hydraulic brake system
GB2322836A (en) * 1997-02-25 1998-09-09 Rover Group A vehicle braking system permitting collapse of the pedal upon collision
FR2774642B1 (en) * 1998-02-11 2000-06-09 Renault DEVICE FOR LIMITING THE EFFORT ON THE BRAKE PEDAL OF A VEHICLE
US6565160B1 (en) * 2000-02-15 2003-05-20 Ford Global Technologies, Inc. Pressure releasable vehicle pedal assembly
US7195091B2 (en) * 2003-08-06 2007-03-27 Drivesol Worldwide, Inc. Crash relief pedal assembly
FR2862932B1 (en) * 2003-11-27 2006-12-22 Renault Sas BRAKING DEVICE FOR MOTOR VEHICLE
JP4670349B2 (en) * 2004-03-10 2011-04-13 株式会社アドヴィックス Braking device for vehicle

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3741881C2 (en) * 1986-12-19 1996-12-12 Volkswagen Ag Foot pedal mechanism for a motor vehicle
GB2230493A (en) * 1989-04-11 1990-10-24 Austin Rover Group Reducing collision damage in vehicles
FR2648583A1 (en) * 1989-06-14 1990-12-21 Bendix France MANOMETRIC LEAK REGULATOR FOR HYDRAULIC CIRCUIT
DE9307274U1 (en) * 1993-05-13 1993-07-22 R. Schmidt GmbH, 5940 Lennestadt Retraction system for the pedal system and steering column of motor vehicles
FR2721887B1 (en) * 1994-06-29 1996-09-06 Alliedsignal Europ Services TO BRAKING AND A MASTER CYLINDER ASSEMBLY OF A PNEUMATIC ASSISTANCE SERVOMOTOR

Also Published As

Publication number Publication date
JPH10500375A (en) 1998-01-13
FR2720046B1 (en) 1996-09-20
US5737919A (en) 1998-04-14
ES2113196T3 (en) 1998-04-16
BR9506494A (en) 1997-10-07
FR2720046A1 (en) 1995-11-24
EP0759866A1 (en) 1997-03-05
WO1995032115A1 (en) 1995-11-30
DE69501402T2 (en) 1998-04-16
DE69501402D1 (en) 1998-02-12
TR28525A (en) 1996-10-01

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